With Sinus Oil B.S.R., when a few drops are rubbed into the sinus tracts under and over the eyes (taking care not to put too much over the eyes so that it drips down!) and at the side of the nose, enables the mucus to drain away.
Sinus Oil B.S.R in some cases may not rid you of the problem, but it will keep it under control at a sensibly low cost.
You may find in any number of books a myriad of other suggestions as “remedies” for sinus, including inhaling salt water! Try them if you wish, but for my money, and I spend mine carefully, Sinus Oil B.S.R I know really can be most effective.